Finally some DM progress

[mowerman]

hopefully get some of this mess cleaned up so i can continue on that nose   right now its well on its way,,,,worse part about accomplished

[mowerman]

On 3/28/2025 at 7:16 AM, mowerman said:

Well, I take that back. I did buy a used 87U model and Fontana California back in 1989. They had a bunch of them that came from Golden State foods it was only two years old.

ive posted this befor,,,had this one in 1989,,,ive posted it before,,,,i dont know why i didnt wait to take the photo,till i had a better looking front box

[mowerman]

[mowerman]

truck was tits,,,,had the bogies with air ride cab,,,only thing i didnt like 300 4 valve mack,,,,engine didnt pull very good

[mowerman]

and yes ive done absolutely nothing past 4 days weather has not cooperated

[Vladislav]

Did it have the chassis mounted aftercooler?

I just wonder if some (late?) U's used that grill and was there the reason having CMCAC?

[mowerman]

You know, I don’t remember it was too long ago. I just wasn’t happy with the  performance. Even a strong head wind  would hold you back It was almost like running a 237 except it did pull the hills. Much better than that one but I did get out of an E6 350 when I traded it for that one the E6 did a way better job

[mowerman]

But I think the AC condenser was right in front of the radiator right behind that grill

[mrsmackpaul]

What sort of weight did you pull into the head wind?

Diagonal wind across the front and flat open treeless country knocks the wind out of 320 with a tall trailer 

Back to 40 - 50 MPH until I  reach trees or some bumps in the country side

And yes that truck does look the goods Bob

 

Paul

[mowerman]

well it was mainly blowing south when i was heading up..but double trailers or triples ,,with any kind of wind even with the 460 i had when i retired ,,,,3 boxes with headwind,,,no help at all....and a slight incline will pull you down to nothing,,,but i only had doubles with the U model.bob

[mowerman]

i had a bunch of photos of that thing,,,but like everything else around here,,,i cant find them

[mowerman]

but to answer your weight questions..paul,,with that outfit was usually 38,000 average LTL loads between both boxes

[Freightrain]

How much more weight was typically put in the front trailer?  20k/18k or 24k/14k for 38k total.

That was a good looking U.  Tall rubber also.  Was that usual?  

[mowerman]

A lot of times I had 26 to 28 at the front box since I had a twin drive

[mowerman]

Around here we’re only allowed 12 five on the stairs and 34,000 on tandems 20,000 on a single axle and except on spread axles they are allowed 20 each

[mowerman]

8 minutes ago, mowerman said:

A lot of times I had 26 to 28 at the front box since I had a twin drive

 

46 minutes ago, Freightrain said:

How much more weight was typically put in the front trailer?  20k/18k or 24k/14k for 38k total.

That was a good looking U.  Tall rubber also.  Was that usual?  

I don’t know Larry it had bud wheels and I don’t remember what size they were. It was too many years ago.

[mowerman]

also paul 80,000 max gross long box or doubles,,,106,000 with triples or rocky mountain set,,,which is long box and a pup behind

[mowerman]

ok 2 more cylinders adjusted,,,,2 more to go breaking for lunch

[mrsmackpaul]

All pretty impressive to me

I gather there's a lot more mountains were this operated

The axle weights in the U.S. are a lot less than the rest of the world 

I'm guessing this has a lot to do with when all the big highways were built across the state's, trucks were slower and loads a lot smaller 

Jay Leno often mentions how in the 50's and 60's people were happy to cruise along at 50 - 55 MPH 

So nothing needed as much power 

Speeds in Australia are much slower, 65 MPH max for trucks, 55 MPH road trains

14300 steer axle

19800 single axle with duals

36500 tandem axles

44000 tri axles

Wide spaced tandem axls are more but I  dunno how much more

Enjoy your lunch when you get to it, and don't plonk your ass in front of the T.V. as you'll nod off 😴

 

Paul

 

 

[mowerman]

no im going to go out and finish the adjusting after lunch cleaning up the valve covers will have to wait ....and yes we have alotta mountains

[Vladislav]

That was interesting note Bob about that big difference in properties of 300 4V compared to 350 4V. I belive 300 4V was EM6 so Maxidyne and E6-350 is Econodyne. But physically they're both almost the same engines. The difference must be in the fuel pump settings and the turbo (if I'm not wrong). So the fact you shared surprizes me a bit.

I have both types of engines in my trucks right at the moment. But didn't experienced 300 4V on a highway since it's not road ready.

[mowerman]

I think the E6 was a two valve. I thought they would be more compatible, but they were not that E6 was a running son of a bitch. Well, I finished the velvet adjustment. I was gonna set the timing, but I figured that’s enough for the day. It’s a lousy day with no sun.

[Joey Mack]

I think the E-6 4 Valve came out in 1987.  And then in 89-90 the E-7 was born...

[mowerman]

OK, thanks for that. The E6 was in my cruise liner, which was an 83

[Joey Mack]

That's a 2 valve.  Million mile engine...